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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 630 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.5595² =
  2. 2.7258² =
  3. 3.531² =
  4. 4.983² =
  5. 5.4007² =
  6. 6.662² =
  7. 7.731² =
  8. 8.9100² =
  9. 9.418² =
  10. 10.543² =
  11. 11.345² =
  12. 12.382² =
  13. 13.220² =
  14. 14.791² =
  15. 15.700² =
  16. 16.131² =
  17. 17.4013² =
  18. 18.297² =
  19. 19.5167² =
  20. 20.995² =
  21. 21.1861² =
  22. 22.888² =
  23. 23.217² =
  24. 24.673² =
  25. 25.760² =
  26. 26.169² =
  27. 27.941² =
  28. 28.9765² =
  29. 29.2527² =
  30. 30.3572² =
  31. 31.748² =
  32. 32.706² =
  33. 33.539² =
  34. 34.810² =
  35. 35.152² =
  36. 36.242² =
  37. 37.831² =
  38. 38.693² =
  39. 39.899² =
  40. 40.932² =

Answer key

  1. 31304025
  2. 52678564
  3. 281961
  4. 966289
  5. 16056049
  6. 438244
  7. 534361
  8. 82810000
  9. 174724
  10. 294849
  11. 119025
  12. 145924
  13. 48400
  14. 625681
  15. 490000
  16. 17161
  17. 16104169
  18. 88209
  19. 26697889
  20. 990025
  21. 3463321
  22. 788544
  23. 47089
  24. 452929
  25. 577600
  26. 28561
  27. 885481
  28. 95355225
  29. 6385729
  30. 12759184
  31. 559504
  32. 498436
  33. 290521
  34. 656100
  35. 23104
  36. 58564
  37. 690561
  38. 480249
  39. 808201
  40. 868624

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